6.10 Odds Ratio

Calculate relative risks for dichotomous nominal, independent variables when one variable is independent, the other dependent. Relative risks are valid for prospective and retrospective cohort designs, randomized controlled trials (RCTs), and some types of cross-sectional studies, but not with case-control studies.

Calculate odds ratios as an alternative to relative risk. It makes the same assumptions. Unlike relative risk, it is valid for all study designs.

cs$or2

## NULL

# Smoking vs Lung Cancer
# https://statistics.laerd.com/premium/spss/rr2x2/relative-risk-2x2-in-spss.php
cs$rr2x2 <- read.spss(
  "./input/relative-risk-2x2-individual-scores.sav", 
  to.data.frame = TRUE
)